UIC 519

Railway Wheelset Equivalent Conicity Determination

This test method specifies procedures for determining the equivalent conicity of railway wheelsets, a critical parameter governing vehicle stability and steering behavior on curves. Conicity describes the geometric relationship between wheel profiles and rail geometry, affecting how vehicles negotiate curves and respond to track irregularities. The measurement is essential for wheelset manufacturers, vehicle designers, and track maintenance specialists to ensure stable, safe operation and minimize wear and derailment risk. Accredited testing provides objective verification that wheelsets meet design specifications and regulatory requirements for dynamic safety.

What it measures

  • Wheel profile geometry and taper angles
  • Equivalent conicity value (λ)
  • Wheelset geometric parameters and deviation
  • Contact point position relative to wheel center
  • Stability characteristics and steering forces
🇧🇪 NBN EN 13262 🇩🇪 DIN EN 13262 🇬🇧 BS EN 13262 🇫🇷 NF EN 13262 🇮🇹 UNI EN 13262 🇪🇸 UNE EN 13262 🇳🇱 NEN EN 13262
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Salt spray / neutral salt fog test (ISO Railway braking — urban guided transport Railway maintenance — track geometry (EN Temperaturmessgrößen elektronische Waagen + 3 more
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KTE Kerntechnische Entsorgung Karlsruhe GmbH TEA

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Kalibrierservice Brandl

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Railway braking — urban guided transport Railway vehicle body structural requirem - Gleichstromwiderstand Temperaturmessgrößen - Temperatur-Blockkalibratoren + 3 more
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Kapraun Prüfdienst

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Karlsruher Institut für Technologie Institut für Elektroenergiesysteme und Hochspannungstechnik (IEH)

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Karlsruher Institut für Technologie Materialprüfungs- und Forschungsanstalt, MPA Karlsruhe

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DAkkS D-PL-11068-08-00 Karlsruhe, DE
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Karlsruher Institut für Technologie Sicherheit und Umwelt (SUM) Kalibrierlabor

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Kenya Bureau of Standards Metrology Laboratories

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> 5 kHz > 10 mg > 20 mg > 50 mg > 100 mg + 3 more
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Kern & Sohn

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DAkkS D-K-19408-01-01 Balingen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Railway bogies — wheelsets and bogies st > 100 G relativen Feuchte + 3 more
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Kessler QMP

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DAkkS D-K-15118-01-01 Friedewald, DE
Salt spray / neutral salt fog test (ISO Environmental noise — determination of s Railway maintenance — track geometry (EN - Gleichspannung - Gleichstromstärke + 3 more
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Keysight Technologies Deutschland GmbH Hardware Test Center Europe

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DAkkS D-PL-19882-01-02 Böblingen, DE
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KfH KURATORIUM FÜR DIALYSE UND NIERENTRANSPLANTATION

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KfH KURATORIUM FÜR DIALYSE UND NIERENTRANSPLANTATION Zentrale Servicestelle - Kalibrierlabor

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Kistler Instrumente

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Railway — traction effort and braking fo Prüfkraftmesseinrichtung - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand + 3 more
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Kistler Remscheid

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DAkkS D-K-17572-01-02 Remscheid, DE
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Kistner Metrologie Service

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Kiwa

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Klasmeier Kalibrier- und Messtechnik GmbH ISOTECH

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DAkkS D-K-15224-01-00 Fulda, DE
Railway braking — urban guided transport Railway vehicle body structural requirem - Thermopaare, Thermoelemente Taupunkttemperatur thermoelemente *) + 3 more
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Industries

Wheelset and bogie manufacturing Rolling stock design and engineering Track maintenance and infrastructure management Vehicle certification and type approval Railway research and development

Related Standards

  • UIC 510-2 Railway vehicles — Running gear — Wheels and wheelsets — Part 2: Definitions and gauges
  • EN 13262 Railway applications — Wheelsets and bogies — Safety requirements for wheels
  • UIC 644 Railway — behaviour of coach bogies — Y25 bogie type

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